查询词典 video-recorder

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Partner of strategy of happy according to actor friend general exclusive technology, canada is inspected honour group (Liu Feng of general manager of HeadPlay) Beijing company introduces,"' happy sow ' place uses is " Freefall free falling body video is compressed / solution presses a technology, this technology is compressed for the video with the at present most advanced whole world / solution presses a technology, use unique graphical details and bandwidth to forecast allocate a technology, all crucial detail that naked eye of the mankind below can meticulous reservation needs to video place and will other naked eye cannot differentiate part makes special processing, avoid a tradition to compress a technology to be in with advanced figure technology tall analytic / when small bit is led, right fast / sophisticated act and the mosaic that setting produces or color piece disintegrate phenomenon.

据优朋普乐独家技术战略合作伙伴，加拿大视尊集团北京公司总经理刘峰介绍，" '乐播'所采用的是"Freefall自由落体视频压缩/解压技术，此技术为目前全球最先进的视频压缩/解压技术，采用独特的图形细节与带宽预测分配技术，能细致的保留下人类肉眼对影像所需的所有关键细节并将其他肉眼无法判别部分作特殊处理，并以先进演算技术来避免传统压缩技术在高解析/低比特率时，对快速/复杂的动作及场景产生的马赛克或色块的瓦解现象。

This text mainly is to panorama video frequency picture, the usage partitions new calculate way automatically according to the video frequency object of timespace consociation at preparing processing stage's ash to video frequency sequence degree diagram to carry on a partial contrast degree to strengthen a processing, increasing foreground object and the contrast degree of background, the filter which passes 3 ×s 3 templates filters in addition to contrast degree strengthen after of lead go into of a little amount 噪 voice;Then aim at the circumstance of complicated background, the calculate way in the text puts forward the covariance characteristic backlog which makes use of immediately signal to get the background that the calculate way needs, overcoming the irregularity that the handicraft obtains background, carrying out a background information to obtain automatically;The standpoint put forward a background backlog finally to categorize a discussion in the process, solved object stop sport time is longer result in the partition throw the problem for losing.

本文主要是对全景视频图像，运用基于时空联合的视频对象自动分割新算法，在预处理阶段对视频序列的灰度图进行局部对比度增强处理，增加前景物体与背景的对比度，通过3×3模板的滤波器滤除对比度增强后的引入的少量噪声；然后针对复杂背景的情况，文中的算法提出利用随即信号的统计特性积累得到算法所需的背景，克服手工获取背景的弊端，实现背景信息的自动获取；最后提出背景积累过程中分类讨论的观点，解决了物体停止运动时间较长时造成分割丢失的问题。

Boys will often play the games, struggling to master a challenging level, well past the point of physical and emotional exhaustion. Children are not so much "addicted" to video games as they are unwilling to quit before they have met their goals, and the games seem to always set new goalposts, inviting us to best "just one more level." One of the limitations of the contemporary video game is that it provides only pre-structured forms of interactivity, and in that sense, video games are more like playgrounds and city parks rather than wild-spaces.

内容大概是不断的尝试跟失败与遵守规则，是让给玩家的一种磨练，在游戏里面不断的练习来达到能力提升完成目标，现在多数的电脑游戏都是属於冷酷无情与目标导向的游戏，男孩子会时常玩这类的游戏，勇於尝试具有挑战性一关接一关，一直到无法无天体力与情绪耗尽为止，小孩子并不是对於游戏沉迷上瘾，而是未达到目标之前不愿意离开游戏，游戏里面总是有很多新的挑战，让我们一直不断的接受下一关的诱惑或是有更好的自我表现。

Video overlay card graphics controller interlaced scanning video synchronizer complex video

视频叠加卡；图形控制器；隔行扫描；视频频率合成；复合视频

This kind of practice is in China compare halfback, till today, website of a lot of video just just began to make mobile phone video, and buy an Internet bar, let a person at this o'clock remember Changjiang Delta spring, cent is numerous be a success undoubtedly, if for instance perhaps one day leisurely inspects the video website such as the net to follow at the same time,divide numerous grab the trade, this life looks it seems that not far

这种做法在中国是比较前卫的，直到今天，很多视频网站才刚开始做手机视频，而收购网吧，这点让人想起了江南春，分众无疑是成功的，假如有一天说不定比如悠视网等视频网站同时跟分众抢生意，这个日子看上去似乎不远

Since hold water, faddish immerse oneself in the research and development at P2P technology core all the time, in NAT penetrable, resource attempers, distributed node all mastered a large number of patent skills on the core technology such as fixed position algorithm, technology of order programme of long-term P2P video is accumulated, rose to transcend the technical barrier that video of long, high-definition clear broadcasts when short amortize for faddish vertical stroke, created a condition to put high-definition video on advertisement.

自成立以来，风行一直埋头于P2P技术核心的研发，在NAT穿透、资源调度、分布式节点定位算法等核心技术上均掌握了大量专利技术，长期P2P视频点播技术积累，为风行竖起了超短缓冲时长、高清晰视频播放的技术壁垒，为投放高清视频广告创造了条件。

When the on-line bid system is applied, except for the make of comprehensive and standard tender documents, the followings also claim attention: how to correctly open the webpage of video meeting inserter, how to suitably adjust video acoustics, and how to properly adjust video images.

在使用网上招标系统时除了应注重标书制作的全面、规范外，还应注意以下问题：正确打开下载视频会议插件网页，适当调节视频音响，正确调试视频图像等，才能顺利完成网上招标工作。

This exhibit in the shape of a pen is includes a large-screen indicator, which faces the video camera. The video-output terminal of the camera is connected to the video-input terminal of the indicator. The indicator constantly transmits its own images to the camera lens. Each time the indicator transmits an image, the image becomes smaller. The input and output signals are repeatedly iterated producing a series of similar, small graphs.

笔形展柜内有一台大屏幕显示器，另有一只摄像头与屏幕水平相对，摄像头的视频输出端与显示器视频端连接，显示其自身的像不断输入摄像机镜头，但每输入一次，图像就缩小一次，即输入与输出信号进行反复迭代，出现一系列逐渐缩小的相似图形。

The video images may be recorded on video tape or on a laser disc or may be live footage from a video camera.

改译：视频图像可以记录在录像带或光盘上，或者是摄像机的实况连续镜头。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。